U.S. Pushes Further in Microsoft-Yahoo Probe

U.S. antitrust regulators have requested more documents in their probe of Microsoft's deal to provide search engine technology to rival Yahoo, the two companies said on Friday.

WASHINGTON, Sept 11 (Reuters) - U.S. antitrust regulators have requested more documents in their probe of Microsoft Corp's deal to provide search engine technology to rival Yahoo Inc, the two companies said on Friday.

The deal, struck in late July as a way to challenge search giant Google, faces regulatory review in the United States.

Both Microsoft and Yahoo confirmed that the Justice Department's antitrust division had made a second request for documents, which indicates a decision to conduct a deeper review that could take months.

"We said when the deal was announced that we expected a review was a matter of time," said Microsoft spokesman Jack Evans.